Skin testing-device system



FIG. 1 is a top front perspective view of a skin testing-device systemshowing our new design;

FIG. 2 is a top left perspective view thereof; and,

FIG. 3 is a top front perspective view thereof.

The broken lines are for illustrative purposes only and form no part ofthe claimed design.

The ornamental design for a skin testing-device system, as shown anddescribed.